Results 71 to 80 of about 3,882,268 (171)

Role of Unbalanced Jet Streak Circulations in East Asian Dust Storms

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract A mesoscale study of three severe dust storms over China and Mongolia was conducted using observational and high‐ resolution numerical model data sets. The analysis of these data indicates many commonalities among the three case studies, (a) precursor wind flow across the mountain creating a strong statically stable layer in the lee of the ...
Ashok Kumar Pokharel, Michael L. Kaplan
wiley   +1 more source

How Terrain Geometry and Environmental Instability Shape Precipitation in Mountain‐Crossing Mesoscale Convective Systems

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract This study uses idealized large‐eddy simulations to systematically examine how terrain geometry and environmental instability modulate precipitation produced by a mountain‐crossing mesoscale convective system (MCS). A suite of simulations isolates the effects of base‐state convective available potential energy (CAPE), mountain width, and crest
Fan Wu, Kelly Lombardo
wiley   +1 more source

An analytical, phenomenological and numerical study of geophysical and magnetohydrodynamic turbulence in two dimensions [PDF]

open access: yes, 2013
In this thesis I study a variety of two-dimensional turbulent systems using a mixed analytical, phenomenological and numerical approach. The systems under consideration are governed by the two-dimensional Navier-Stokes (2DNS), surface quasigeostrophic
Blackbourn, Luke A. K.
core   +2 more sources

Comparative Study of Low-Level Wind Fields Characteristics at Two Critical Locations in the Terminal Area of Plateau Mountain Airports During the Dry-Season Using Coherent Doppler Wind Lidars

open access: yesRemote Sensing
The Qinghai–Tibet Plateau is characterized by highly complex terrain, and civil aviation serves as a primary mode of transportation for regional mobility.
Junjie Wu   +5 more
doaj   +1 more source

Characteristics of Energy Dissipation Rate at the Standard Weather Observatory Under Various Atmospheric Conditions and Its Application to Aviation Turbulence Intensity

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Accurate prediction of low‐level turbulence (LLT) is critical for aviation safety, particularly for the emerging urban air mobility industry and aircraft takeoffs and landings. To better understand and predict these hazards, the characteristics of the energy dissipation rate (EDR) in the atmospheric boundary layer (ABL) were investigated using
Jeonghoe Kim   +7 more
wiley   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

open access: yesAdvanced Materials, Volume 38, Issue 56, 8 October 2026.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao   +3 more
wiley   +1 more source

Assessment of Wind‐Farm‐Atmosphere Interactions at the Sørlige Nordsjø II Large Offshore Wind Farm: A Comparative LES and Analytical Wake Study

open access: yesWind Energy, Volume 29, Issue 10, October 2026.
ABSTRACT Sørlige Nordsjø II (SNII) is a planned large‐scale offshore wind farm in the Southern Norwegian North Sea near the Danish border, with phased development targeting a total installed capacity of up to 3 GW. For projects of this scale, site assessments are typically performed using computationally efficient analytical models.
Mostafa Bakhoday Paskyabi, Xu Ning
wiley   +1 more source

Estimating Turbulence Due to Low-Level Wind Shear in Airport Runway Zones Using TabNet-SHAP Framework

open access: yesIEEE Access
In this research, we present an advanced predictive framework designed to assess the turbulence induced by low-level wind shear near the runways at Hong Kong International Airport (HKIA), utilizing data from Pilot Reports (PIREP).
Afaq Khattak   +5 more
doaj   +1 more source

Clear‐Air Turbulence Upstream of a Hydraulic Jump Leading to a Helicopter Accident—A Large Eddy Simulation

open access: yesEarth and Space Science, Volume 13, Issue 10, October 2026.
Abstract This study investigates clear‐air turbulence that triggered a helicopter accident in the lee of a mountain range near Koriyama, Japan, on 1 February 2020. Using numerical weather prediction models with horizontal resolutions of 1 km and 100 m, we examined the environmental conditions and mechanisms responsible for the turbulence.
J. Ito, H. Niino, K. Saito, K. Okuyama
wiley   +1 more source

Wind farm and environmental aerodynamics assessment using computational engineering [PDF]

open access: yes, 2011
The aim of this thesis is the application of computational engineering software for the study of wind resource assessment of a wind farm as well as for establishing the range of influence of different numerical and physical parameters, including ...
Zoumprouli, Argyro
core   +3 more sources

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